Nasal Cavity, Sinuses and Ear - LO 7
7. What is the greater petrosal n., and what is its relationship to the middle ear?
7. What is the greater petrosal n., and what is its relationship to the middle ear?
The greater petrosal n. carries preganglionic parasympathetic fibers from the geniculate ganglion to the nerve of the pterygoid canal. The greater petrosal n. never enters the middle ear, but it courses superior to the tympanic cavity in the vicinity of tensor tympani m.
